seer vs prophetess

seer and prophetess both are nouns.

Word	Noun	Adjective	Verb	Adverb
seer	Yes	No	No	No
prophetess	Yes	No	No	No

As nouns, prophetess is a hyponym of seer; that is, prophetess is a word with a more specific, narrower meaning than seer:

Other hyponyms of seer include augur, auspex, sibyl.

seer (noun)	prophetess (noun)
a person with unusual powers of foresight	a woman prophet
an authoritative person who divines the future
an observer who perceives visually